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经营范围
发明名称
Electrical switch
摘要
申请公布号
US1974428(A)
申请公布日期
1934.09.25
申请号
US19320617929
申请日期
1932.06.18
申请人
MAYER WALTER S
发明人
MAYER WALTER S.
分类号
H01H73/50
主分类号
H01H73/50
代理机构
代理人
主权项
地址
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